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Submission #950281

# Submission time Handle Problem Language Result Execution time Memory
950281 2024-03-20T07:37:35 Z Tuanlinh123 Cake 3 (JOI19_cake3) C++17
100 / 100
 1263 ms 27084 KB 
#include<bits/stdc++.h>
#define ll long long
#define pll pair<ll, ll>
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define ld long double
#define sz(a) ((ll)(a).size())
using namespace std;

const ll maxn=200005, inf=1e18;
ll n, m, v[maxn], c[maxn], p[maxn], lptr=1, rptr=0, ans=-inf;

namespace SegTree
{
    struct Node
    {
        ll cnt=0, sum=0;
        Node(){}
        Node(ll x): cnt(!!x), sum(x){}
    };
    Node St[maxn*4];

    void update(ll i, ll Start, ll End, ll idx, ll val)
    {
        if (Start>idx || End<idx) return;
        if (Start==End) {St[i]=Node(val); return;}
        ll mid=(Start+End)/2;
        if (mid>=idx) update(i*2, Start, mid, idx, val);
        else update(i*2+1, mid+1, End, idx, val);
        St[i].cnt=St[i*2].cnt+St[i*2+1].cnt;
        St[i].sum=St[i*2].sum+St[i*2+1].sum;
    }
    void update(ll idx, ll val){update(1, 1, n, idx, val);}

    ll query(ll i, ll Start, ll End, ll k)
    {
        if (Start==End)
        {
            if (!St[i].cnt) return -inf;
            return St[i].sum;
        }
        ll mid=(Start+End)/2;
        if (St[i*2+1].cnt>=k) return query(i*2+1, mid+1, End, k);
        return query(i*2, Start, mid, k-St[i*2+1].cnt)+St[i*2+1].sum;
    }
    ll query() {return query(1, 1, n, m);}
}

ll query(ll l, ll r)
{
    while (l<lptr) lptr--, SegTree::update(p[lptr], v[lptr]);
    while (r>rptr) rptr++, SegTree::update(p[rptr], v[rptr]);
    while (l>lptr) SegTree::update(p[lptr], 0), lptr++;
    while (r<rptr) SegTree::update(p[rptr], 0), rptr--;
    ll res=SegTree::query()-c[r]+c[l];
    ans=max(ans, res);
    return res;
}

void DnC(ll l, ll r, ll optl, ll optr)
{
    if (l>r) return;
    ll mid=(l+r)/2, res=-inf, opt=optr;
    for (ll i=max(mid+m-1, optl); i<=optr; i++)
        tie(res, opt)=max(mp(res, opt), mp(query(mid, i), i));
    DnC(l, mid-1, optl, opt), DnC(mid+1, r, opt, optr);
}

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin >> n >> m;
    for (ll i=1; i<=n; i++)
        cin >> v[i] >> c[i], c[i]=c[i]*2;
    //sort
    {
        vector <pll> num;
        for (ll i=1; i<=n; i++) num.pb({c[i], v[i]});
        sort(num.begin(), num.end());
        for (ll i=0; i<sz(num); i++) tie(c[i+1], v[i+1])=num[i];
        num.clear();
        for (ll i=1; i<=n; i++) num.pb({v[i], i});
        sort(num.begin(), num.end());
        for (ll i=0; i<sz(num); i++) p[num[i].se]=i+1;
    }
    DnC(1, n, 1, n), cout << ans;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16988 KB Output is correct
2 Correct 3 ms 16988 KB Output is correct
3 Correct 3 ms 16988 KB Output is correct
4 Correct 3 ms 16988 KB Output is correct
5 Correct 3 ms 16984 KB Output is correct
6 Correct 3 ms 17012 KB Output is correct
7 Correct 3 ms 16988 KB Output is correct
8 Correct 3 ms 16988 KB Output is correct
9 Correct 3 ms 16988 KB Output is correct
10 Correct 3 ms 16988 KB Output is correct
11 Correct 3 ms 16988 KB Output is correct
12 Correct 3 ms 16988 KB Output is correct
13 Correct 3 ms 16988 KB Output is correct
14 Correct 4 ms 16988 KB Output is correct
15 Correct 3 ms 16984 KB Output is correct
16 Correct 3 ms 16988 KB Output is correct
17 Correct 3 ms 16988 KB Output is correct
18 Correct 3 ms 16984 KB Output is correct
19 Correct 3 ms 17240 KB Output is correct
20 Correct 3 ms 16988 KB Output is correct
21 Correct 4 ms 16988 KB Output is correct
22 Correct 3 ms 16984 KB Output is correct
23 Correct 3 ms 16988 KB Output is correct
24 Correct 3 ms 16988 KB Output is correct
25 Correct 3 ms 16988 KB Output is correct
26 Correct 3 ms 16988 KB Output is correct
27 Correct 4 ms 16988 KB Output is correct
28 Correct 3 ms 16988 KB Output is correct
29 Correct 3 ms 16988 KB Output is correct
30 Correct 3 ms 16988 KB Output is correct
31 Correct 3 ms 16988 KB Output is correct
32 Correct 3 ms 16988 KB Output is correct
33 Correct 3 ms 16988 KB Output is correct
34 Correct 3 ms 16996 KB Output is correct
35 Correct 3 ms 16988 KB Output is correct
36 Correct 3 ms 16988 KB Output is correct
37 Correct 3 ms 16988 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16988 KB Output is correct
2 Correct 3 ms 16988 KB Output is correct
3 Correct 3 ms 16988 KB Output is correct
4 Correct 3 ms 16988 KB Output is correct
5 Correct 3 ms 16984 KB Output is correct
6 Correct 3 ms 17012 KB Output is correct
7 Correct 3 ms 16988 KB Output is correct
8 Correct 3 ms 16988 KB Output is correct
9 Correct 3 ms 16988 KB Output is correct
10 Correct 3 ms 16988 KB Output is correct
11 Correct 3 ms 16988 KB Output is correct
12 Correct 3 ms 16988 KB Output is correct
13 Correct 3 ms 16988 KB Output is correct
14 Correct 4 ms 16988 KB Output is correct
15 Correct 3 ms 16984 KB Output is correct
16 Correct 3 ms 16988 KB Output is correct
17 Correct 3 ms 16988 KB Output is correct
18 Correct 3 ms 16984 KB Output is correct
19 Correct 3 ms 17240 KB Output is correct
20 Correct 3 ms 16988 KB Output is correct
21 Correct 4 ms 16988 KB Output is correct
22 Correct 3 ms 16984 KB Output is correct
23 Correct 3 ms 16988 KB Output is correct
24 Correct 3 ms 16988 KB Output is correct
25 Correct 3 ms 16988 KB Output is correct
26 Correct 3 ms 16988 KB Output is correct
27 Correct 4 ms 16988 KB Output is correct
28 Correct 3 ms 16988 KB Output is correct
29 Correct 3 ms 16988 KB Output is correct
30 Correct 3 ms 16988 KB Output is correct
31 Correct 3 ms 16988 KB Output is correct
32 Correct 3 ms 16988 KB Output is correct
33 Correct 3 ms 16988 KB Output is correct
34 Correct 3 ms 16996 KB Output is correct
35 Correct 3 ms 16988 KB Output is correct
36 Correct 3 ms 16988 KB Output is correct
37 Correct 3 ms 16988 KB Output is correct
38 Correct 7 ms 16984 KB Output is correct
39 Correct 8 ms 16988 KB Output is correct
40 Correct 5 ms 16988 KB Output is correct
41 Correct 5 ms 16988 KB Output is correct
42 Correct 5 ms 16988 KB Output is correct
43 Correct 5 ms 17116 KB Output is correct
44 Correct 6 ms 16988 KB Output is correct
45 Correct 7 ms 16988 KB Output is correct
46 Correct 7 ms 16988 KB Output is correct
47 Correct 7 ms 16988 KB Output is correct
48 Correct 7 ms 16988 KB Output is correct
49 Correct 6 ms 16988 KB Output is correct
50 Correct 6 ms 16988 KB Output is correct
51 Correct 6 ms 16988 KB Output is correct
52 Correct 6 ms 16988 KB Output is correct
53 Correct 7 ms 16988 KB Output is correct
54 Correct 6 ms 16992 KB Output is correct
55 Correct 5 ms 16984 KB Output is correct
56 Correct 4 ms 16988 KB Output is correct
57 Correct 5 ms 16988 KB Output is correct
58 Correct 5 ms 16988 KB Output is correct
59 Correct 5 ms 16988 KB Output is correct
60 Correct 6 ms 17116 KB Output is correct
61 Correct 5 ms 16988 KB Output is correct
62 Correct 5 ms 16988 KB Output is correct
63 Correct 6 ms 16984 KB Output is correct
64 Correct 5 ms 16988 KB Output is correct
65 Correct 6 ms 17112 KB Output is correct
66 Correct 6 ms 16988 KB Output is correct
67 Correct 6 ms 16988 KB Output is correct
68 Correct 6 ms 16988 KB Output is correct
69 Correct 5 ms 16988 KB Output is correct
70 Correct 6 ms 16988 KB Output is correct
71 Correct 6 ms 16988 KB Output is correct
72 Correct 5 ms 17000 KB Output is correct
73 Correct 6 ms 16988 KB Output is correct
74 Correct 5 ms 16988 KB Output is correct

Subtask #3
76.0 / 76.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 16988 KB Output is correct
2 Correct 3 ms 16988 KB Output is correct
3 Correct 3 ms 16988 KB Output is correct
4 Correct 3 ms 16988 KB Output is correct
5 Correct 3 ms 16984 KB Output is correct
6 Correct 3 ms 17012 KB Output is correct
7 Correct 3 ms 16988 KB Output is correct
8 Correct 3 ms 16988 KB Output is correct
9 Correct 3 ms 16988 KB Output is correct
10 Correct 3 ms 16988 KB Output is correct
11 Correct 3 ms 16988 KB Output is correct
12 Correct 3 ms 16988 KB Output is correct
13 Correct 3 ms 16988 KB Output is correct
14 Correct 4 ms 16988 KB Output is correct
15 Correct 3 ms 16984 KB Output is correct
16 Correct 3 ms 16988 KB Output is correct
17 Correct 3 ms 16988 KB Output is correct
18 Correct 3 ms 16984 KB Output is correct
19 Correct 3 ms 17240 KB Output is correct
20 Correct 3 ms 16988 KB Output is correct
21 Correct 4 ms 16988 KB Output is correct
22 Correct 3 ms 16984 KB Output is correct
23 Correct 3 ms 16988 KB Output is correct
24 Correct 3 ms 16988 KB Output is correct
25 Correct 3 ms 16988 KB Output is correct
26 Correct 3 ms 16988 KB Output is correct
27 Correct 4 ms 16988 KB Output is correct
28 Correct 3 ms 16988 KB Output is correct
29 Correct 3 ms 16988 KB Output is correct
30 Correct 3 ms 16988 KB Output is correct
31 Correct 3 ms 16988 KB Output is correct
32 Correct 3 ms 16988 KB Output is correct
33 Correct 3 ms 16988 KB Output is correct
34 Correct 3 ms 16996 KB Output is correct
35 Correct 3 ms 16988 KB Output is correct
36 Correct 3 ms 16988 KB Output is correct
37 Correct 3 ms 16988 KB Output is correct
38 Correct 7 ms 16984 KB Output is correct
39 Correct 8 ms 16988 KB Output is correct
40 Correct 5 ms 16988 KB Output is correct
41 Correct 5 ms 16988 KB Output is correct
42 Correct 5 ms 16988 KB Output is correct
43 Correct 5 ms 17116 KB Output is correct
44 Correct 6 ms 16988 KB Output is correct
45 Correct 7 ms 16988 KB Output is correct
46 Correct 7 ms 16988 KB Output is correct
47 Correct 7 ms 16988 KB Output is correct
48 Correct 7 ms 16988 KB Output is correct
49 Correct 6 ms 16988 KB Output is correct
50 Correct 6 ms 16988 KB Output is correct
51 Correct 6 ms 16988 KB Output is correct
52 Correct 6 ms 16988 KB Output is correct
53 Correct 7 ms 16988 KB Output is correct
54 Correct 6 ms 16992 KB Output is correct
55 Correct 5 ms 16984 KB Output is correct
56 Correct 4 ms 16988 KB Output is correct
57 Correct 5 ms 16988 KB Output is correct
58 Correct 5 ms 16988 KB Output is correct
59 Correct 5 ms 16988 KB Output is correct
60 Correct 6 ms 17116 KB Output is correct
61 Correct 5 ms 16988 KB Output is correct
62 Correct 5 ms 16988 KB Output is correct
63 Correct 6 ms 16984 KB Output is correct
64 Correct 5 ms 16988 KB Output is correct
65 Correct 6 ms 17112 KB Output is correct
66 Correct 6 ms 16988 KB Output is correct
67 Correct 6 ms 16988 KB Output is correct
68 Correct 6 ms 16988 KB Output is correct
69 Correct 5 ms 16988 KB Output is correct
70 Correct 6 ms 16988 KB Output is correct
71 Correct 6 ms 16988 KB Output is correct
72 Correct 5 ms 17000 KB Output is correct
73 Correct 6 ms 16988 KB Output is correct
74 Correct 5 ms 16988 KB Output is correct
75 Correct 1086 ms 22716 KB Output is correct
76 Correct 1221 ms 25804 KB Output is correct
77 Correct 843 ms 25292 KB Output is correct
78 Correct 975 ms 27080 KB Output is correct
79 Correct 106 ms 27084 KB Output is correct
80 Correct 215 ms 25440 KB Output is correct
81 Correct 960 ms 24780 KB Output is correct
82 Correct 1263 ms 25812 KB Output is correct
83 Correct 1153 ms 26316 KB Output is correct
84 Correct 1152 ms 26060 KB Output is correct
85 Correct 1012 ms 25984 KB Output is correct
86 Correct 601 ms 25980 KB Output is correct
87 Correct 602 ms 25964 KB Output is correct
88 Correct 874 ms 24820 KB Output is correct
89 Correct 918 ms 25040 KB Output is correct
90 Correct 576 ms 25800 KB Output is correct
91 Correct 374 ms 25984 KB Output is correct
92 Correct 410 ms 25292 KB Output is correct
93 Correct 465 ms 24868 KB Output is correct
94 Correct 315 ms 25036 KB Output is correct
95 Correct 570 ms 26316 KB Output is correct
96 Correct 605 ms 25296 KB Output is correct
97 Correct 715 ms 26216 KB Output is correct
98 Correct 695 ms 24956 KB Output is correct
99 Correct 604 ms 25196 KB Output is correct
100 Correct 478 ms 24776 KB Output is correct
101 Correct 509 ms 25544 KB Output is correct
102 Correct 903 ms 26312 KB Output is correct
103 Correct 891 ms 24520 KB Output is correct
104 Correct 1050 ms 25808 KB Output is correct
105 Correct 762 ms 26572 KB Output is correct
106 Correct 768 ms 25032 KB Output is correct
107 Correct 662 ms 26312 KB Output is correct
108 Correct 957 ms 26312 KB Output is correct
109 Correct 623 ms 27004 KB Output is correct
110 Correct 461 ms 25292 KB Output is correct
111 Correct 676 ms 24304 KB Output is correct
112 Correct 635 ms 25548 KB Output is correct
113 Correct 110 ms 26752 KB Output is correct